Bobbin puller



Nov. 19, 1935. zANETTl 2,021,824

BOBBIN FULLER Filed Feb. 12, 1954 INVENTOR ATTORNEYS Patented Nov. 19, 1935 UNITEDSTATES PATENT OFFICE BOBBIN PULLER,

Angelo L. Zanetti, Rome, Ga.

Application-February 12, 1934, Serial No. 710,966

6 Claims.

This invention relates to bobbin pullers and hasforthe primary object the provision of a portable 'tool whereby a person may easily and quickly remove bobbins from their holders while the latter are in operation or driven by a spinning machine, obviating the necessity of stopping the machine to remove bobbins and thereby provides a time and labor saver and materially decreases operating costs.

With these and other objects in view this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

Fora complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a vertical sectional view illustrating a tool constructed in accordance with my inven-.

tion and showing the same applied to a bobbin mounted to a holder.

Figure 2 is a sectional view taken on the line 2--2 of Figure 1.

Figure 3 is a similar view taken on the line 33 of Figure 1.

Figure 4 is a fragmentary sectional view illustrating oneof the connections between segmental elements constituting an expansible member.

Referring in detail to the drawing, the numeral l indicates a tool especially adaptable for the removal of a bobbin 2 from its holder during the operation or rotation of the bobbin by said holder, thereby obviating the necessity of stopping the operation of a spinning machine in which the holder forms a part of in order to remove the bobbin. The holder 3 is of a conventional type constituting a substantially triangular-shaped portion 4 to be received in one end of the bobbin 2 and frictionally grip the latter so that the bobbin will rotate with the holder. After the bobbin has been fully'wound and it is desired to remove it from the holder 3 the tool I is employed, as shown in Figure 1, so that the bobbin can be removed without the stopping of the operation of the machine.

The tool consists of pivotally connected heads 5 and 6 having integral therewith handles l. The head 5 carries a pintle 8 on which is journaled a roller 9. An extension It! is integral with the head 6 and carries a pair of pintles II on which are journaled rollers l2. Operating in conjunction with the rollers 9 and I2 is an expansible member 13 consisting of segmental elements l4 flanged at opposite sides, as shown at IS. The

segmental elements are connected by do-well pins from each other.

16 so thatsaid elements may move towards and To retain the segmental elements assembled an elastic band 11 surrounds said elements and provides an annular gripping face to engage with the inner walls of the bobbin 5 2, as shown in Figure 1. The manipulation of the handles 1 will bring about expanding of the expansible member against the bobbin and due to the rollers this expansible member may rotate freely with the bobbin while the heads 5 and 6 l0 and handles 1 remain substantially fixed or the handles may be held by a person's hand.

The head 6 has a bore to slidably receive a rod l8 which extends through the expansible member l3 for engagement with the holder 3while the 15 other end is pivotally and slidably connected to an operating lever 19. The lever i9 is pivotally connected to the head 6 by a link 20.

The tool positioned, as shown in Figure 1, with the member l3 expanded against the bobbin, the 20 operator swings the lever is on its fulcrum causing the rod 18 which bears against the holder 3 to remove the bobbin from said holders.

A device constructed in accordance with the foregoing has been found to be practical and of 25 considerable merit for the purpose of removing bobbins from a spinning machine manufacturing rayon from viscose, the present system requiring the stopping of the spinning machine in order to remove the bobbins. This is necessary every time 30 the bobbins become full or about once every three hours. To change the bobbin under the present system requires from 20 to 25 minutes or about two and three-fourths hours out of every twentyfour hours. While the spinning machine is 35 stopped, the viscose pumps must remain in operation in order to keep 'spinnerette holes open. This necessitates an enormous waste of viscose and also requires a large number of laborers or persons to remove the bobbins. The employment 40 of the present tool permits a person to rapidly remove the bobbins as they are filled without stopping the spinning machine, consequently reducing labor costs and other costs incident to the stopping of the machine as above stated. 45

Having described the invention, I claim:

1. A bobbin puller comprising pivotally connected heads, handles for said heads, expansible membersrotatably connected to the heads to engage with a bobbin carried by a holder, and means 50 carried by one of the heads to engage with the holder for the removal of the bobbin from said holder duringthe rotation of the bobbin.

2. A bobbin puller comprising pivotally connected heads, handles for said heads, rollers j our- 55 naled to said heads, an expansible member carried by said rollers to engage with the bobbin, a slidable rod carried by one of the heads to engage with a holder'for said bobbin, and a holding means fulcrumed on the rod and connected to the heads.

3. A bobbin puller comprising pivotally connected heads, handles for said heads, rollers journaled to said heads, an expansible member carried by said rollers to engage with the bobbin, a slidable rod carried by one of the heads to engage with a holder for said bobbin, and a holding lever pivoted to the heads and pivotally and slidably connected to the rod.

4. A bobbin puller comprising pivotally connected heads, handles for said heads, rollers journaled to said heads, a rod slidably carried by one of the heads to engage with the bobbin holder, a

holding lever pivoted to said rod and to the heads, an expansible member supported by said rollers and including a series of segmental shaped elements, a yieldable element surrounding the segmental elements and forming a gripping face t6 engage with a bobbin on the holder.

5. A bobbin puller comprising pivotally connected heads, handles for said heads, rollers journaled to said heads, a rod slidably carried by one of the heads to engage with the bobbin holder, a

holding means connected to the rod and to the heads, an expansible member supported by said rollers and including a series of segmental shaped elements, a yieldable element surrounding the segmental elements and forming a gripping face to engage with a bobbin on the holder, and dowel pins movably connecting the segmental-shaped elements.

6. A device for removing a bobbin from a rotating holder comprising a spindle, an expansible bobbin gripping element rotatably mounted about said spindle, means for expanding said element so that it will engage the inside of a bobbin, 2. stop member operatively associated with said spindle, and means for moving said element away from said stop member when lateral movement of the stop member is arrested.

ANGELO L. ZANETTI. 

